Etymograph

English

bacteroidal

Bacteroidal comes from Proto-Indo-European *wéydos ‘seeing’, and goes back to *weyd- ‘to see’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*weyd-1‘to see’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*wéydos1‘seeing’reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*wéidos1reconstructed
  4. Ancient Greekc. 800–300 BCEεἶδος1eîdos
  5. English1500–presentbacteroid1
  6. Englishtodaybacteroidal1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English bacteroidal

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*weyd-Wiktionary, English bacteroidal‘to see’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*wéydosWiktionary, English bacteroidal‘seeing’reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*wéidosWiktionary, English bacteroidalreconstructed
  4. Ancient Greekc. 800–300 BCEεἶδοςWiktionary, English bacteroidaleîdos
  5. English1500–presentbacteroidWiktionary, English bacteroidal
  6. EnglishtodaybacteroidalWiktionary, English bacteroidal

A compound of bacteroid + -al

Proto-Indo-European *weyd- ‘to see’

Proto-Indo-European *wéydos ‘seeing’

Proto-Hellenic *wéidos

Ancient Greek εἶδος

English bacteroid

Linked words

through Proto-Indo-European *weyd- ‘to see’

story, guy, video, idea, review, visit, evidence, advice, provide, vision, interview, guide, witness, historic, wisdom, visa, advise, invisible, wit, wizard, historian, evident, visibility, vista, wisely, witty, revise, guise, prudent, envious, jurisprudence, unwise, prudence, revue, avis, improvise, purview, druid, vide, twit, 103 more

through Proto-Indo-European *wéydos ‘seeing’

wise, 47 more

through Proto-Hellenic *wéidos

eidolon, steroidal, 47 more

through Ancient Greek εἶδος

idol, tabloid, steroid, hypothyroidism, idyll, trapezoid, parathyroid, hyperthyroidism, hyoid, thyroxine, colloid, sigmoid, thyroiditis, 49 more

Today it means

adj Relating to the bacteroids

Sources

Sources: Wiktionary, “bacteroidal”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *weyd- / bacteroidal

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